Status: Permanent Full Time
Education Level: A four-year university degree in Science, Technology, Engineering, or Mathematics plus 1 year of concentrated study in Business.
Base Location: Oshawa, ON
Shift: Days
Travel: 10%
Deadline to Apply: July 8, 2026
Salary Range: $2,751.92 - 3,442.06 Per Week
Electrify your career and help build a brighter tomorrow.
Every generation has a challenge that defines them. At OPG, we are calling on all innovators, disruptors, thought leaders and change-makers. Join us as we work to electrify life in one generation and build a sustainable future powered by our electricity, our ideas, and our people. Join OPG and make history.
Whether you work in the skilled trades or are a business professional, a career at OPG is an opportunity to electrify your life on - and off - the job.
JOB OVERVIEW
Ontario Power Generation (OPG) is looking for a dynamic, strategic and results-driven professional to join our team in the role of Lead Business Systems Analyst (Agile/User Stories).
Reporting to the Manager, IT Product Delivery, this position is responsible on documenting functional and technical specifications for integrations and interfaces between legacy systems and enterprise middleware (e.g., ESB/iPaaS/API platforms, message brokers). This role partners closely with business stakeholders, integration developers, architects, QA, and operations to translate business needs into clear, testable, implementation-ready integration requirements and interface designs.
KEY ACCOUNTABILITIES
- Produce high-quality documentation, such as: Functional Specifications for integrations (scope, triggers, workflow, business rules, exceptions),Technical Specifications (interface contracts, message schemas, field-level mappings, sequencing, NFRs),Source-to-target mapping documents, canonical model mappings, and transformation logic, Interface details including API, file-based, batch, event/message-based patterns (REST/SOAP, SFTP, MQ/Kafka, etc.).• Document integration behaviors end-to-end: triggers, routing, orchestration, acknowledgements, retries, idempotency, reconciliation, and failure scenarios.
- Maintain versioned documentation and ensure alignment across stakeholders (business, architecture, development, QA, and support).
- Data and Interface design support including: Partnering with solution/integration architects to validate integration patterns, sequencing, and middleware capabilities, collaborate with data stakeholders to define data ownership, system of record, data quality expectations, and reference
- Derive testable acceptance criteria and support QA with: /master data dependencies.
- Define integration NFRs including performance, throughput, batch windows, availability, monitoring/alerting, logging, auditability, and security.
- Elicit and analyze requirements for system-to-system integrations, data exchanges, and interface changes across legacy applications and middleware platforms.
- Facilitate discovery sessions to understand current-state processes, data flows, constraints, and pain points; define future-state integration behavior.
- Define and maintain business rules, data transformation rules, validation rules, and error-handling requirements.
QUALIFICATIONS
- A four-year university degree in Science, Technology, Engineering, or Mathematics plus 1 year of concentrated study in Business, with 8–10 years of progressive experience in business analysis and integration-focused roles.
- Proven experience documenting functional and technical specifications for system integrations, including APIs, middleware, and legacy systems.
- Strong expertise in interface design concepts such as REST/SOAP APIs, file-based integrations, messaging systems (e.g., MQ, Kafka), and batch processing.
- Demonstrated experience creating source-to-target mappings, data transformation rules, and canonical data models for enterprise systems.
- Solid understanding of integration architecture patterns (ESB, iPaaS, event-driven) and ability to collaborate effectively with solution/integration architects.
- Experience eliciting and documenting business and system requirements, including facilitating discovery sessions and translating needs into testable acceptance criteria.
- Strong knowledge of non-functional requirements (NFRs), including performance, scalability, availability, monitoring, logging, and security.
- Excellent stakeholder engagement, communication, and documentation skills, with the ability to align business, technical, QA, and operations teams.
The successful candidate will exhibit uncompromising integrity and commitment to upholding corporate values, and the OPG Code of Business Conduct.
OPG is committed to fostering an inclusive, equitable, and accessible environment. If you require accommodation during the selection process, please contact
[email protected]
What makes a career at OPG different?
With operations across Ontario, OPG is one of the most diverse power producers in North America. As the largest generator in Ontario, we meet approximately 50% of the province’s electricity needs, largely from low-carbon sources like nuclear and hydro.
As we work to achieve our vision of Electrifying life in one generation, OPG and our family of companies are also helping advance the development of new low-carbon technologies such as Small Modular Reactors (SMRs), refurbishment projects, and electrification initiatives to help power the growing demands of a growing economy. Join OPG and make history.
Please submit your application online at https://jobs.opg.com/. OPG thanks all those who apply; however, only candidates considered for an interview will be contacted.
Please note: All job postings at OPG are to fill existing vacancies within our organization.
OPG may use artificial intelligence (AI) tools as part of the applicant screening process. However, applications will also be reviewed by a member of our Recruitment team to ensure a fair and thorough assessment.
The base salary range considers many factors including, but not limited to experience, education, and training, including any collective agreement requirements for union represented positions. It is not typical for the salary to be offered near the top of the range, and salary is dependent on numerous factors. For management roles, the base salary range does not represent the total compensation package. The total compensation package for regular full-time management roles includes pay-for-performance programs for annual and medium time periods. Maintaining a high-performance culture and excellence is a core expectation of every member of our leadership team and is rewarded through the established compensation framework.
OPG is committed to employment equity. As such, we encourage applicants from equity-seeking communities (Indigenous Peoples, racialized persons, persons with disabilities, and women). We strongly believe that alleviating the under-representation of equity-seeking individuals will create a stronger OPG team and allow us to better serve the needs of our diverse communities.
In order to fulfill the above-mentioned purpose, priority in hiring may be given to qualified persons who self-identify as a member of equity-seeking groups as identified in the application process. This initiative constitutes a special program under the Human Rights Code/Canadian Human Rights Act.
